#include "quality.h"
#include <iostream>
#include <vector>
#include <set>
#include <algorithm>
using namespace std;
int rectangle(int R, int C, int H, int W, int Q[3001][3001]) {
const int n = R, m = C, h = H, w = W;
const int MAX = 9000012, MAX_INT = 2000000024;
int i, j, k, l;
int t = (h*w)/2, min_ = MAX_INT, c;
set<int> arr;
for(k = 0; k < h; k++) {
for(l = 0; l < w; l++) {
arr.insert(Q[k][l]);
}
}
c = *next(arr.begin(), t);
if(c < min_) min_ = c;
for(i = 0; i <= n - h; ) {
//cout << i << endl;
for(j = 0; j < m - w; j++) {
for(k = i; k < i + h; k++) {
auto it = lower_bound(arr.begin(), arr.end(), Q[k][j]);
/*/*
for(auto it : arr) {
cout << it << " ";
}
cout << endl;
cout << "target : " << Q[k][j] << endl;
cout << "erase : " << *it << endl;
cout << "insert : " << k << ", " << j+w << endl;
/**/
arr.erase(it);
arr.insert(Q[k][j+w]);
}
c = *next(arr.begin(), t);
if(c < min_) min_ = c;
}
i++;
if(i > n-h) continue;
for(k = 0; k < w; k++) {
auto it = lower_bound(arr.begin(), arr.end(), Q[i-1][j+k]);
/*/*
for(auto it : arr) {
cout << it << " ";
}
cout << endl;
cout << "target : " << Q[i-1][j+k] << endl;
cout << "erase : " << *it << endl;
cout << "insert : " << i+h-1 << ", " << j+k << endl;
/**/
arr.erase(it);
arr.insert(Q[i+h-1][j+k]);
}
c = *next(arr.begin(), t);
if(c < min_) min_ = c;
for(j -= 1; j >= 0; j--) {
for(k = i; k < i + h; k++) {
auto it = lower_bound(arr.begin(), arr.end(), Q[k][j+w]);
/*/*
for(auto it : arr) {
cout << it << " ";
}
cout << endl;
cout << "target : " << Q[k][j+w] << endl;
cout << "erase : " << *it << endl;
cout << "insert : " << k << ", " << j << endl;
/**/
arr.erase(it);
arr.insert(Q[k][j]);
}
c = *next(arr.begin(), t);
if(c < min_) min_ = c;
}
i++;
if(i > n-h) continue;
for(k = 0; k < w; k++) {
auto it = lower_bound(arr.begin(), arr.end(), Q[i-1][k]);
/*/*
for(auto it : arr) {
cout << it << " ";
}
cout << endl;
cout << "target : " << Q[i-1][k] << endl;
cout << "erase : " << *it << endl;
cout << "insert : " << i+h-1 << ", " << k << endl;
/**/
arr.erase(it);
arr.insert(Q[i+h-1][k]);
}
c = *next(arr.begin(), t);
if(c < min_) min_ = c;
}
return min_;
}
